Can I make my Firefox bookmarks available to another user?

Having been sole user (A) of a Vista Home Premium SP2 laptop with just 1 user account, I've created a 2nd user account for the first time. It's a for my spouse (B), for whom it'll be a first foray into using a computer (the main purpose being finding things out from the web). Firefox 12.0 is the default browser in both accounts.

Is there any way I can allow user B access to my bookmark collection, and without merging the 2 libraries? (I'd like to provide a blank canvas for user B's bookmarks, but with some way of accessing mine whenever useful).

Account A is admin, B non-admin. In our case, it would be safe to remove the password-protection of either/both most of the time, if that helps.

I've also asked in Mozilla's Firefox forum, but may get a quicker response here. (Meanwhile, I'm trying to find out if there's any way via Xmarks).